Coiler-head.



' Patented Jan. I6, |900. C. L HILDRETH.

C 0 I L E R H E A D (Application filed Sept. 18, 1 899.)

(No ModeL) Fi g2.

VV STNESSES.

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NTTED STATES PATENT OFFICE..

CHARLES L. HILDRETH, OF LOVELL, MASSACHUSETTS, ASSIGNOR TO THE LOWELL MACHINE SHOP, OF SAME PLACE.

COILER-H EAD.

SPECIFICATION forming part f Letters Patent N0. 641,387, dated. January 16, 1900.

Application filed September 18, 1899. Serial No. 730,801. (No model.)

T0 all whom t may concern.'

Beit known that I, CHARLES L. HILDRETH, of Lowell, in the county of Middlesex and State of Massachusetts, have invented certain new and useful Improvements in Coiler- Heads, of which the following is a specifica' tion.

My invention relates to coiler-heads having an opening in the top of the casing which Io may be closed or may be opened readily to expose the operating mechanism of the coiler. The object of my invention is to make it easy by means of a simplified construction to inspect or to oil that mechanism without stopping it or breaking or twisting the sliver or causing the sliver to gather yings or dust. Heretofore in such coiler-heads the trumpet has been made integral with or has been attached to the slide or cover for the openzo ingand has been revoluble therewith to cover and uncover the opening in the casing, thereby unnecessarily twisting the sliver during the opening or closing thereof. Moreover, the lyings and dust which have collected z5 upon the trumpet and upon the slide or cover while they are not in motion have been caught by and incorporated into the moving sliver and carried by the sliver int-o the coiler-can as the trumpet and slide or cover have passed beneath it. The soiling of the sliver, which occurs during the uncovering of the opening by ordinary operatives Who exercise only ordinary care, is objectionable, and is obviated by my invention, which is represented in Figures 1, 2, 3, and 4, andis of simplified construction.

Fig. l is a plan of the cover of the coilerhead with the opening in the top thereof partially uncovered. Fig. 2 is a longitudinal opening. Fig. 3 is an end elevation of the cover of the coiler-head with the opening in the top thereof partially uncovered. Fig. 4 is a Vertical longitudinal section of the coilerhead, showing the mechanism which requires inspection and oiling, but which is of usual construction and forms no part of this invention.

Similar letters refer to similar parts in the 5o different views.

0L represents the coiler-cover; b, theback section of the cover through the uncovered sliver-guide; c, the trumpet sliver-guide through which the sliver passes to the operating mechanism; d, the slide or cover for covering or uncovering the opening, so constructed as to engage with the slot z'- by means of a projection from d, which may or-may not be integral With d and with the trumpet sliverguide, Whether d covers or uncovers the opening; ff and ff, the means used for fasten- 6o ing the trumpet and back sliver-guide to the cover; g, the opening in the cover through which the operating mechanism can be inspected or oiled; h, a rabbet in b, which receives a part of d when the opening is covered; t', a guideway or slot through the cover ct and concentric with the trumpet slivera guide, and lo k means for keeping the cover in contact with the trumpet sliver-guide and the guideway. 7o

The trumpet and back sliver-guides are made thicker than is usual, and the sliver is thereby raised so high above the slide or cover d that the slide or cover can be moved to cover or to uncover the opening Without bringing the iiyings or dust which have collected thereupon into the path ofthe moving sliver. Moreover, the trumpet sliver-guide does not rotate with the slide or cover, and therefore does not carry the iyings or dust 8o which have collected thereupon into the path of the moving sliver. During the ordinary operation of the coiler d fits closely in h and t' and tightly` covers the opening g.

In my invention fiyings and dust which have collected upon the top of the slide or cover or upon the top of the trumpet sliverguide are not during the uncovering of the opening caught by and incorporated into the moving sliver and carried into the coiler-can. 9o

I claiml. The combination with the casing of a coiler-head'containing mechanism and having in its top an' opening and a guideway substantially concentric with the trumpet, of a trumpet sliver-guide which is 'fixed to the said top, a back sliverguide which is xed to the said top and is rabbeted to receive a cover for the opening and a cover to engage with the trumpet sliver-guide and the guide- 10o way, to cover the opening and lit into the rabbet of the back sliver-guide and to uncover the opening in the casing,substantia1ly as described.

2. The combination with the casing of a coiler-head containing mechanism and having in its top an opening and a guideway, of a trumpet sliver-guide which is xed to the said top, a back sliver-guide which is fixed to the said top and is rabbeted to receive a cover for the opening, a cover to contact with the trumpet sliver -guide and engage the guideway, to cover the opening and fit into 

